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The YouYi Automation Products Center
All of YouYi's press automation solutions in one place.
Decoiler/Uncoiler
The KHT series dual-station decoiler features a dual-head design that effectively saves material changeover time and improves production efficiency. This machine is suitable for fast punching in conjunction with high-speed punch presses, for punching products such as stators, rotors, and EI laminations.
By enabling quick coil changeover without stopping the press, this dual-station decoiler significantly reduces downtime and maximizes productivity for manufacturers requiring stable and uninterrupted material supply.
Material width (mm): 200-300
Material thickness (mm): 0-3.0
Product Characteristics
he KHT Series Dual Station Decoiler is a dual-head coil handling machine designed for continuous stamping and automated coil processing lines.
Unlike a conventional single-station decoiler, the KHT series provides two coil loading positions. While one coil is being unwound and supplied to the production line, the second coil can be prepared for the next production cycle. This configuration helps reduce coil changeover time and minimize downtime during continuous stamping production.
The KHT dual station decoiler is suitable for applications that require frequent coil replacement, stable material unwinding, and high production continuity. It can be integrated with a servo feeder, precision straightener, and stamping press to form a complete automated coil feeding line.
Typical applications include:
Motor stator and rotor stamping
EI lamination production
Furniture hardware stamping
Automotive component stamping
Electrical component manufacturing
Precision metal stamping
Other high-volume coil-fed stamping applications
YouYi Precision can configure the KHT dual station decoiler according to coil width, material characteristics, coil weight, expansion requirements, and the configuration of the downstream stamping line.
The main purpose of the KHT series is to improve coil changeover efficiency in continuous stamping production.
A typical operating sequence is:
Coil A Unwinding → Coil A Running → Coil B Loading → Coil A Finished → Coil B Changeover → Coil B Unwinding
While the first coil is being processed, operators can prepare the second coil on the other station. Once the first coil is depleted, the line can switch to the prepared coil according to the production setup.
This reduces the amount of time required to remove an empty coil and load the next coil compared with a conventional single-station decoiler.
The actual changeover time depends on coil weight, material dimensions, line configuration, operator procedures, and the connection method between coils.
The KHT series uses a dual-head coil loading structure that provides two coil positions within one decoiling system.
One station can supply material to the production line while the other station is prepared for the next coil. This arrangement is particularly useful for high-volume stamping applications where frequent coil replacement would otherwise interrupt production.
With a second coil position available, operators do not need to wait until the running coil is completely processed before preparing the next coil.
The dual-station configuration helps shorten coil replacement operations and reduce unnecessary production interruptions.
For continuous stamping lines, reducing changeover downtime can improve overall equipment utilization and production continuity.
The KHT decoiler is designed to provide controlled and stable coil unwinding during production.
A damping device helps regulate the unwinding behavior of the coil and reduces excessive rotation during material release.
Stable unwinding is important when the decoiler is connected to a straightener and servo feeder because uncontrolled coil rotation can affect material tension and the stability of the feeding process.
The KHT series uses a support structure with pressing nuts, hinged rods, and sleeves to control the expansion and contraction of the coil support mechanism.
This structure helps secure the coil on the decoiler and allows adjustment according to different coil inner diameters.
The actual coil range and applicable loading capacity should be confirmed according to the selected KHT configuration.
The KHT series uses a long-axis structural design to provide support for larger material loads while maintaining a relatively compact overall arrangement.
This structure also facilitates coil loading and unloading during production.
The KHT dual station decoiler can be configured with different expansion methods according to production requirements.
Available options include:
Manual expansion
Hydraulic expansion
Hydraulic expansion can be selected for applications requiring more convenient coil loading and clamping operations.
The KHT series can be equipped with a motor and electrical control system for powered uncoiling.
A motorized configuration can be considered according to material characteristics, line speed, coil weight, and the requirements of the connected straightener and feeder.
For applications where the decoiler primarily follows the material demand from the downstream feeding system, an idler configuration may also be used.
For certain narrow-material applications, the KHT series can be configured with a left-right shifting mechanism.
This special configuration allows the coil position to be adjusted laterally according to the material and downstream equipment arrangement.
The availability of this option depends on the specific machine configuration.
The KHT series can be integrated with other coil processing equipment to create a complete automatic stamping line.
A typical configuration is:
Dual Station Decoiler → Straightener Feeder → Servo Feeding → Stamping Press
For applications requiring separate straightening and feeding functions, the KHT can be combined with a straightener feeder.
For servo-controlled feeding applications, it can also be connected to a servo feeder.
When material requires additional precision leveling, the decoiler can be integrated with an S-type precision leveler.
The complete production process can therefore be arranged as:
Coil Loading → Decoiling → Straightening → Servo Feeding → Stamping
The specific line configuration should be selected according to material thickness, coil width, coil weight, production speed, stamping process, and required feeding accuracy.
In a furniture hardware stamping application, the KHT dual station decoiler is integrated with a straightener-feeder to create an automated coil feeding system for hinge production.
The dual-station structure provides two coil loading positions. While one coil is being processed, the next coil can be prepared on the second station.
The production process is arranged as:
Dual Station Decoiling → Straightening → Feeding → Stamping
This configuration reduces interruptions caused by coil replacement and supports continuous production for high-volume hinge stamping.
The straightener corrects coil curvature before the material reaches the feeder, while the feeder controls the material feeding length into the stamping die.
For furniture hardware production, stable material handling is important because feeding consistency can affect part dimensions, hole positions, forming accuracy, and overall production stability.
The main difference between a dual station decoiler and a conventional single station decoiler is the way coils are prepared and changed during production.
| Feature | Dual Station Decoiler | Single Station Decoiler |
|---|---|---|
| Coil loading positions | Two | One |
| Preparation of next coil during production | Possible | Limited |
| Coil changeover | Faster changeover workflow | Requires coil replacement on the same station |
| Production continuity | Suitable for continuous production | Suitable for standard coil feeding |
| Equipment arrangement | Dual-head structure | Single-head structure |
| Typical application | High-volume or frequent coil changeover | General coil processing |
A dual station decoiler is particularly useful when coil replacement occurs frequently and production downtime needs to be minimized.
For lower-volume production or applications with infrequent coil changes, a conventional single-station decoiler may be sufficient.
The dual-station structure allows the next coil to be prepared while the current coil is being processed, helping reduce downtime during coil replacement.
The KHT can be configured with manual or hydraulic expansion, motorized or idler operation, and special lateral shifting options for selected applications.
The decoiler can be combined with straightener feeders, servo feeders, precision levelers, and stamping presses to create a complete coil processing line.
The dual-station configuration is particularly suitable for production lines where coil replacement occurs frequently and production continuity is important.
YouYi Precision provides decoilers, straighteners, servo feeders, and complete coil feeding systems for stamping applications.
Our engineers can configure the decoiler according to the actual coil specifications and downstream production requirements.
What is a dual station decoiler?
A dual station decoiler is a coil handling machine with two coil loading positions. One coil can be processed while another coil is prepared for the next production cycle.
This design helps reduce coil changeover time in continuous stamping applications.
What is the difference between a dual station decoiler and a single station decoiler?
A single station decoiler has one coil loading position, while a dual station decoiler provides two.
The second station allows the next coil to be prepared while the current coil is running, making the dual-station design suitable for applications where frequent coil replacement would otherwise interrupt production.
Can the KHT decoiler be motorized?
Yes. The KHT series can be equipped with a motor and electrical control system for powered uncoiling.
Whether a motorized or idler configuration is appropriate depends on coil characteristics, production speed, and the requirements of the downstream equipment.
Does the KHT support hydraulic expansion?
Yes. The KHT series supports both manual and hydraulic expansion configurations.
Hydraulic expansion can be selected when the production line requires more convenient coil clamping and loading operations.
Can the KHT be connected to a straightener and servo feeder?
Yes. The KHT dual station decoiler can be integrated with a straightener, servo feeder, and stamping press.
A typical automated coil feeding line is:
KHT Dual Station Decoiler → Straightener → Servo Feeder → Stamping Press
Can the KHT be customized for narrow materials?
Yes. A left-right shifting configuration is available for selected narrow-material applications.
The exact configuration should be confirmed according to the material width and downstream machine arrangement.
What information is required to select a KHT dual station decoiler?
The main information includes:
Coil weight
Coil width
Coil inner diameter
Material type
Material thickness
Required production speed
Expansion method
Downstream straightener and feeder configuration
Based on these parameters, YouYi can recommend a suitable dual station decoiler configuration.
Technical Parameters
| Mode | Material width | Maximum load | Inner diameter of coil | Maximum coil outer diameter | Body weight | Dimensions | Motor | Coil expansion | ||
| Unit | mm | kgs | mm | mm | kgs | mm | HP | Hand crank | ||
| KHT200 | KHT200A | 200 | 500x | 450-530 | 1200 | 300 | 1100x1300x1300 | 2 | ||
| KHT300 | KHT300A | 300 | 800x2 | 450-530 | 1200 | 350 | 1100x1300x1300 | 3 | ||
Application
1600 Large-Scale New Energy Lithium Battery Aluminum Casing Blanking Dedicated Automated Stamping Line
Thick-Sheet 3-in-1 Decoiler, Leveler & Feeder System for Automotive Stamping Applications
Customized Dual-Uncoiler 3-in-1 Feeding Line for Automated Stamping of Smart Furniture Hardware Components
2-in-1 Decoiler & Leveling Machines with Servo Feeders: Enhancing Precision in 3C Industry Automation
Ready to streamline your production with reliable stamping automation solutions that boost efficiency, reduce downtime!
Related Products
MT Series Heavy Duty Hydraulic Decoiler/Uncoiler Machine
The hydraulic automatic decoiler is equipped with hydraulic expansion, allowing the material's inner diameter to expand and contract automatically, saving time and effort.
MT Series Metal Coil Automatic Decoiler/Uncoiler Machine
Automatic Decoiler is designed for uncoiling various metal coils. It supports hydraulic expansion and optional coil car, and works with straighteners and servo feeders for automated coil feeding in stamping lines.
CR Series Light Duty Decoiler / Uncoiler for Thin Metal Coil Feeding
The CR Series Light Duty Decoiler is built for uncoiling thin and soft metal coils in compact stamping lines. It features a simple structure, reliable performance, and optional motorized drive.
MT Series Heavy Duty Hydraulic Decoiler/Uncoiler with Automatic Coil Loading Carriage
Automatic MT Series hydraulic decoiler for heavy coils. Material width 100–1600 mm, thickness 0–6.0 mm, hydraulic expansion & coil loading carriage — ideal for roll forming and stamping lines. Inquire now.
FAQ
Q: How do I determine the right feeder size for my production line?
A: The feeder size depends on the material width, thickness, and feeding step distance required by your stamping press. Choosing the correct specifications ensures smooth operation and prevents feeding errors or misalignment.
Q: What factors should I consider when choosing a servo feeder machine?
A: When selecting a servo feeder, key factors include feeding accuracy (±0.05mm or better), maximum feeding speed (e.g., 20m/min), material compatibility (stainless steel, aluminum, etc.), load capacity, and control system (PLC or touchscreen). Ensure the machine matches your stamping process requirements.
Q: How do I choose the right decoiler, straightener and feeder?
A: Select based on material type, width, thickness, coil weight, and required speed. Match decoiler capacity to coil size, choose a straightener for material strength, and a feeder that meets feed length and precision. Ensure compatibility with your press and automation level.
Q: Coil feeder vs servo feeder: what’s the difference?
A: A coil feeder is a broader system for continuous coil feeding, often integrated with decoiler and straightener. A servo feeder uses servo motors for precise, programmable feeding, ideal for short pitches and high accuracy applications.
Q: How to choose decoiler capacity?
A: Select a decoiler rated 10–20% above your maximum coil weight. Confirm inner diameter (I.D.) compatibility and outer diameter limits. Adjustable mandrels are recommended if you run multiple coil sizes.
Q: What feed precision can I expect?
A: Servo feeders typically achieve ±0.01–0.05 mm, with high-end models reaching ±0.005 mm. Mechanical feeders usually provide ±0.02–0.1 mm. Actual accuracy depends on material properties and straightening quality.
Q: How does material affect machine selection?
A: High-strength materials need stronger straightening and drive systems. Thin materials require low-pressure handling. Soft materials like aluminum need anti-scratch solutions.
Q: What affects feeding accuracy most?
A: Key factors include feeder precision, servo tuning, straightener setup, material quality, and press stability. Poor setup or worn dies can reduce accuracy.
Q: What spare parts should be prepared?
A: Common spares include bearings, belts, sensors, seals, guide blocks, and lubrication parts. Keeping key components reduces downtime and improves maintenance efficiency.
Q: Can feeders be retrofitted to existing presses?
A: Yes, most systems support retrofitting. Check press dimensions, feed height, control compatibility, and safety requirements before installation.
Q: How long does it take to receive the feeder machine after placing an order?
A: Lead time for delivery typically ranges from 4 to 8 weeks depending on customization, production schedules, and shipping location. Once your order is confirmed, we will provide a more precise delivery estimate.
Q: What are your payment terms?
A: We accepts T/T payment, 30% deposit and 70% balance before shipping
Q: How often should I perform maintenance on my servo feeder machine?
A: Routine maintenance should be conducted weekly for basic cleaning and lubrication, while a more thorough inspection should be done monthly to check for wear on rollers, belts, and electrical components. A full servicing is recommended every 6-12 months depending on usage intensity.
Q: What are the most common issues with feeder machines, and how can I troubleshoot them?
A: Common issues include misalignment, inconsistent feeding accuracy, or motor failure. Check for loose bolts, dirt buildup, or software calibration errors. If problems persist, refer to the user manual or contact technical support.
Q: Do you provide on-site repair services if my machine breaks down?
A: Yes, we offer on-site repair services for major issues, along with remote troubleshooting support for minor problems. For urgent cases, we can dispatch a technician within 24-48 hours, depending on your location.
Q: What is the maintenance cycle?
A: Daily cleaning and inspection; weekly check belts, air lines; monthly inspect bearings and guides; yearly replace worn parts. Adjust frequency based on operating hours and workload.
Q: What's the package of your coil feeding machines?
A: For the coil feeding equipment that go LCL shipping, We will use plastic films wrap on the equiment, and then fix it into a wooden box.
For the large coil lines that go FCL shipment, We will fix each part with ropes on the shipping container and then wrapped them with plastic films.
Q: What is the typical lead time?
A: Standard machines usually take 4–8 weeks. Customized systems or full production lines may require 10–20+ weeks depending on complexity and production schedule.
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